What Are the Symptoms of Low Differential Fluid?

If the gear oil runs low, or becomes excessively dirty, it can cause the gears to whine or howl as they turn. The whining or howling is caused by lack of lubrication and may increase in volume as vehicle speed increases.

How often should you change front and rear differential fluid?

Most manufacturers recommend that the differential fluid be changed every 30,000 to 60,000 miles. It is a messy job, and should be done by a licensed mechanic.

Does Jiffy Lube change differential fluid?

Jiffy LubeĀ® drains the used fluid and replaces it with differential fluid that meets or exceeds your manufacturer’s specifications.

Is rear differential service necessary?

For most cars, you just need to change the rear differential fluid every 20,000 to 40,000 miles. Because there is some variation, you should look at the owner’s manual for your vehicle to confirm your ideal service interval. From there, you can ask your mechanic about the cost to service your rear differential.

How do you check differential fluid levels?

Check Fluid Level. Fluid should be at or just below the bottom of the Fill Plug hole. Fluid should not be black or gritty. If fluid is low, check for leaks.

What does changing rear differential fluid do?

The differential oil lubricates the ring and pinion gears that transfer power from the driveshaft to the wheel axles. If your car is fitted with a limited-slip differential, it also keeps all the moving parts in that assembly healthy. The purpose of the differential fluid is to cool and lubricate your differential.